<!--  -->
<template>
  <div>
    <div class="shopcart">
      <div class="content">
        <!--任务一:为div绑定事件  显示隐藏遮罩层 购物车列表-->
        <!--content-left 左侧条  读取购物车数据显示 -->
        <div class="content-left" @click="toggleShow">
          <div class="logo-wrapper">
            <div class="logo highlight">
              <i class="iconfont icon-shopping_cart highlight"></i>
            </div>
            <div class="num">{{totalCount}}</div>
          </div>
          <div class="price highlight">￥
            {{totalPrice | currency-format}}</div>
          <div class="desc">另需配送费￥{{shop.peisong}} 元</div>
        </div>
        <div class="content-right">
          <!--engough 充足-->
          <!--not-enough不充足 engough 充足  ? 20-->
          <div class="pay" :class="payClass" @click="jiesuan">
            {{payText}}
          </div>
          <AlertTip :alertText="alertText" v-show="alertShow" @closeTip="closeTip"></AlertTip>
        </div>
      </div>
      <!--购物车列表: 默认隐藏-->
      <div class="shopcart-list" v-show="listShow">  <!-- v-show="isShow"-->
        <div class="list-header">
          <h1 class="title">购物车</h1>
          <span class="empty" @click="clearCart">清空</span>
        </div>
        <div class="list-content">
          <ul>
            <li class="food" v-for="(food,index) in cartFoods" :key="index">
              <span class="name">{{food.gname}}</span>
              <div class="price"><span>￥{{food.price}}</span></div>
              <div class="cartcontrol-wrapper">
                 <CartControl :food="food"></CartControl>
              </div>
            </li>
          </ul>
        </div>
      </div>
    </div>
    <div class="list-mask" v-show="listShow"  @click="toggleShow"></div><!--遮罩层-->
  </div>
</template>
<script>
//任务一:读取vuex中数据 mapState函数
//1:引入函数
import {mapState,mapGetters, mapActions} from "vuex"
//2:引入购物车按钮组件
import CartControl from "../CartControl/CartControl.vue"
//3:引入滑动组件
import BScroll from "better-scroll"
import AlertTip from "../AlertTip/AlertTip.vue"
import {reqCreateOrder, reqJieSuan} from "../../api";
//4 引入MessageBox 清空购物车要确认
import {MessageBox,Toast} from "mint-ui"
export default {
  computed: {
      //2:通过mapState函数读取属性 cartFoods
     ...mapState(['cartFoods','userInfo','shop']),
     ...mapGetters(['totalCount','totalPrice']),
     //计算结算
     payText(){
         //1:获取总价格
         const {totalPrice} = this;
         //2:商家最小配送金额
         const  {qisong} = this.shop;
         //3:如果总价等于0
         if(totalPrice===0){
           return `￥${qisong}元起送`;
         }else if(totalPrice<qisong){
           return `还差${qisong-totalPrice}元起送`;
         }else{
           return '结算';
         }
         //4:如果总价格小于最小配送金额
         //5:总价大于最小配送金额
     },
     payClass(){
        //1:获取总价格
        const {totalPrice} = this
        //2:获取最小起送金额
        const {qisong} = this.shop
        //3:判断
        return totalPrice>=qisong?'enough':'not-enough'
     },
     listShow(){
       //切换显示购物车中列表
       //1:判断总数量0直接不显示  
       if(this.totalCount===0){
         this.isShow = false;
         return false;
       }
       //2:this.isShow == true  
       if(this.isShow){
        //3:创建BScroll对象显示列表
        new BScroll(".list-content",{
          click:true
        })
        //4:返回this.isShow
       }
       return this.isShow;
     }
  },
  data() {
    return {
        isShow:false,
        alertText:"",   //提示框中显示文本
        alertShow:false,//提示框是否显示控制变量
    }
  },
  components: {
    CartControl,
    //注册使用提示组件
    AlertTip
  },
  
  methods: {
    //关闭[隐藏]提示框组件
    closeTip() {
      this.alertShow = false; //隐藏提示框组件
      this.alertText = ""; //清除提示文字
    },
    //显示提示框组件
    showAlert(alertText) {
      this.alertText = alertText; //将参数字符串赋值
      this.alertShow = true; //显示框
    },
    toggleShow(){
      //只有当前总数量大于0时切换
      if(this.totalCount > 0){
         this.isShow = !this.isShow
      }
    },
    clearCart(){
    //清空购物车
    //1显示提示框
    MessageBox.confirm("确定要清空购物车吗?").then(action=>{
      this.$store.dispatch("clearCart");
    },()=>{});  //两个参数,action=>{},点确定要干的事;()=>{},点取消要干得事
    },
    async jiesuan() {
    if(this.payText==='结算'){
        const totalmoney=Number(this.totalPrice)+Number(this.shop.peisong);
        if(this.$store.state.userInfo.money<totalmoney){
          this.showAlert("余额不足，请充值！");
        }else{
          const yu=this.$store.state.userInfo.money-totalmoney;
          console.log('结算');
          console.log(yu);
          const result=await reqJieSuan({yu});
          if(result.code>0){
            const cart_Foods=this.$store.state.cartFoods;
            console.log(cart_Foods);
            cart_Foods.forEach(item=>{
              let fname=item.gname;
              let fprice=item.price;
              let fcount=item.count;
              let result1=reqCreateOrder({fname,fprice,fcount});
              if(result1.code>0){
                console.log('创建订单成功');
              }
            })
            }
            MessageBox.confirm("确定要结算吗?").then(action=>{
              this.$store.dispatch("getUserInfo");  //调用vuex里的action里的getUserInfo
              //this.$store.dispatch("clearCart");
              this.$router.replace("/order");
            },()=>{});
          }
        }
    }
  }
}

</script>
<style lang='stylus' rel='stylesheet/stylus' scoped>
@import '../../common/stylus/minxns.styl'
.shopcart
    position fixed
    left 0
    bottom 0
    z-index 50
    width 100%
    height 48px
    .content
      display flex
      background #141d27
      font-size 0
      color rgba(255, 255, 255, 0.4)
      .content-left
        flex 1
        .logo-wrapper
          display inline-block
          vertical-align top
          position relative
          top -10px
          margin 0 12px
          padding 6px
          width 56px
          height 56px
          box-sizing border-box
          border-radius 50%
          background #141d27
          .logo
            width 100%
            height 100%
            border-radius 50%
            text-align center
            background #2b343c
            &.highlight
              background $green
            .icon-shopping_cart
              line-height 44px
              font-size 24px
              color #80858a
              &.highlight
                color #fff
          .num
            position absolute
            top 0
            right 0
            width 24px
            height 16px
            line-height 16px
            text-align center
            border-radius 16px
            font-size 9px
            font-weight 700
            color #ffffff
            background rgb(240, 20, 20)
            box-shadow 0 4px 8px 0 rgba(0, 0, 0, 0.4)
        .price
          display inline-block
          vertical-align top
          margin-top 5px
          line-height 24px
          padding-right 12px
          box-sizing border-box
          font-size 16px
          font-weight 700
          color #fff
          &.highlight
            color #fff
        .desc
          display inline-block
          vertical-align bottom
          margin-bottom 15px
          margin-left -45px
          font-size 10px
      .content-right
        flex 0 0 105px
        width 105px
        .pay
          height 48px
          line-height 48px
          text-align center
          font-size 12px
          font-weight 700
          color #fff
          &.not-enough
            background #2b333b
          &.enough
            background #00b43c
            color #fff
    .ball-container
      .ball
        position fixed
        left 32px
        bottom 22px
        z-index 200
        transition all 0.4s cubic-bezier(0.49, -0.29, 0.75, 0.41)
        .inner
          width 16px
          height 16px
          border-radius 50%
          background $green
          transition all 0.4s linear
    .shopcart-list
      position absolute
      left 0
      top 0
      z-index -1
      width 100%
      transform translateY(-100%)
      &.move-enter-active, &.move-leave-active
        transition transform .3s
      &.move-enter, &.move-leave-to
        transform translateY(0)
      .list-header
        height 40px
        line-height 40px
        padding 0 18px
        background #f3f5f7
        border-bottom 1px solid rgba(7, 17, 27, 0.1)
        .title
          float left
          font-size 14px
          color rgb(7, 17, 27)
        .empty
          float right
          font-size 12px
          color rgb(0, 160, 220)

      .list-content
        padding 0 18px
        max-height 217px
        overflow hidden
        background #fff
        .food
          position relative
          padding 12px 0
          box-sizing border-box
          bottom-border-1px(rgba(7, 17, 27, 0.1))
          .name
            line-height 24px
            font-size 14px
            color rgb(7, 17, 27)
          .price
            position absolute
            right 90px
            bottom 12px
            line-height 24px
            font-size 14px
            font-weight 700
            color rgb(240, 20, 20)
          .cartcontrol-wrapper
            position absolute
            right 0
            bottom 6px

  .list-mask
    position fixed
    top 0
    left 0
    width 100%
    height 100%
    z-index 40
    backdrop-filter blur(10px)
    opacity 1
    background rgba(7, 17, 27, 0.6)
    &.fade-enter-active, &.fade-leave-active
      transition all 0.5s
    &.fade-enter, &.fade-leave-to
      opacity 0
      background rgba(7, 17, 27, 0)
</style>